assert facility

Wed Jun 12 05:05:00 GMT 2002

shudo@computer.org wrote:
>If compilation is performed at runtime, conditional branches for
>assertions can be eliminated by (runtime-)constant propagation.
>But, I'm not sure whether it could be possible for GCJ.
>
Right. There will always be some branch cost for an assertion in GCJ if 
the assertions are enabled at compile time. But, branch prediction hints 
can be set to always assume the assertion will not trigger, which can 
reduce their cost on modern hardware.
>Should we provide a gcj flag to eliminate all assertions?
>For native code, yes. For generating bytecode we should just follow what 
Sun recommends.
regards
Bryce.